Hello,
I am new to Jetty and have seen some inconsistent behavior that I am
struggling to find the cause. I am using the embedded jetty via a maven
dependency file that is shown below. I am trying to use the the jersey
container to support webservice annotations.
<?xml version="1.0" encoding="UTF-8"?>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.eclipse.jetty/jetty-server -->
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
<version>9.4.31.v20200723</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.eclipse.jetty/jetty-servlet -->
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlet</artifactId>
<version>9.4.31.v20200723</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.core/jersey-server
-->
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>2.31</version>
</dependency>
<!--
https://mvnrepository.com/artifact/org.glassfish.jersey.containers/jersey-container-servlet-core
-->
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<version>2.31</version>
</dependency>
<!--
https://mvnrepository.com/artifact/org.glassfish.jersey.containers/jersey-container-jetty-http
-->
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-jetty-http</artifactId>
<version>2.31</version>
</dependency>
<!--
https://mvnrepository.com/artifact/org.glassfish.jersey.media/jersey-media-moxy -->
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId>
<version>2.31</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.inject</groupId>
<artifactId>jersey-hk2</artifactId>
<version>2.31</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.8.0</version>
</dependency>
</dependencies>
</project>
I sometimes encounter no problems, and sometime struggle for with the
following exception!
java.lang.NoClassDefFoundError:
org/eclipse/jetty/util/Attributes$Wrapper
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:164)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:78)
at
org.eclipse.jetty.server.ResourceService.sendWelcome(ResourceService.java:436)
at
org.eclipse.jetty.server.ResourceService.doGet(ResourceService.java:251)
at
org.eclipse.jetty.server.handler.ResourceHandler.handle(ResourceHandler.java:256)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1377)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:190)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1292)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:501)
at
org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
at
org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:556)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at
org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
at java.lang.Thread.run(Thread.java:748)
Can anyone assist?
Thanks,
Shaffin.
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